Problem is seen with RHEL 6.x version and even CentOS. After enough trials and error, a solution that has worked like a charm is to add the below config line to the eclipse ini file, typically found at location: /opt/IBM/SDP

-Dorg.eclipse.swt.browser.UseWebKitGTK=true

How to add an argument to the eclipse ini file:

Note: After making the above changes, the next start of RAD/RTC/Eclipse may crash, but further restarts will not.
Related Reading: How to Fix the Latest Eclipse RAD RTC RSA crashes
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